» Nizoral is not regulated by the FDA so when it was originally provided to
» the consumer, there were no clinical trials completed to establish its
» efficacy. The results vary quite a bit between patients. If it works
» favorably, by all means keep using it.
It is prescribed and approved by the FDA as an anti-fungal; in the US the 2% concentration required a script.
The fact the WHO lists Ketoconazole as a potent chemical with a potentially serious impact on human endocrinology is a completely different thing.
The first is why many people don’t understand how Nizoral can impact hairloss, the second clearly explains it’s mechanism (e.g. thru action on all androgens). Interestingly Nizoral impacts Adrenal as well as HPTA endocrinology; this is part of the reason I believe it works so well for people that may not react to simple DHT treatments.